Error in login to mysql database

Computer Science
1

I need help how can i solve this problem.
Fatal error: Uncaught mysqli_sql_exception: Access denied for user 'username'@'localhost' (using password: YES) in C:\Apache24\htdocs\mywebsite\webpages\validation.php:8 Stack trace: #0 C:\Apache24\htdocs\mywebsite\webpages\validation.php(8): mysqli->__construct('localhost', 'username', Object(SensitiveParameterValue), 'businessdb') #1 {main} thrown in C:\Apache24\htdocs\mywebsite\webpages\validation.php on line 8
:slight_smile:

1 Like
2

I understand that you’re facing a MySQL connection issue in your PHP code. The error message indicates that there’s a problem with the database connection due to an access denied error for the specified user at ‘localhost’ using the provided password.

Let’s break down the error message and try to resolve the issue:

  1. Check Database Credentials:
    Double-check the username, password, and database name in your database connection code. Ensure that the username and password are correct and have the necessary privileges to access the database.

    $db = new mysqli('localhost', 'username', 'password', 'businessdb');

  2. Verify Database Host:
    Make sure that ‘localhost’ is the correct database host. In some cases, it might be a different value such as an IP address or a domain. Verify the host information with your hosting provider or database administrator.

  3. Database User Privileges:
    Confirm that the database user (‘username’ in your case) has the appropriate privileges to access the ‘businessdb’ database. You may need to check and grant the necessary permissions.

  4. Password Issues:
    Ensure that the password provided for the database user is correct. Check for any typos, and be mindful of case sensitivity in passwords.

  5. Sensitive Information:
    Be careful with sensitive information, especially when sharing code. Make sure that sensitive information such as usernames and passwords are not exposed in public repositories or shared openly.

Here’s an updated example with error handling to provide more information about the connection error:

<?php
try {
    $db = new mysqli('localhost', 'username', 'password', 'businessdb');
    
    // Your code for database operations goes here

} catch (mysqli_sql_exception $e) {
    // Handle connection errors
    echo "Connection failed: " . $e->getMessage();
}
?>

This way, if there’s an issue with the connection, you’ll get a more detailed error message that can help you pinpoint the problem.

1 Like
3

Do I still need to give a user a privilege? it’s just a login verification. username and password goes to the database verify if the username exist an is correct.

4

this Query the database to check if the username and password match